JP5536989B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture that can be attached to a mounted portion such as a ceiling to illuminate the front and the mounted portion.

As shown in FIG. 6, in the conventional lighting fixture 100 attached to the ceiling 101, the fixture main body 102 is attached to the ceiling 101, and a straight tube fluorescent lamp 103 as a light source is attached inside the fixture main body 102. It has been. A reflector 104 is attached to the rear (upper) of the fluorescent lamp 103 inside the instrument main body 102, and reflects light emitted from the fluorescent lamp 103 forward (lower). In addition, a lattice-like louver 105 is provided in front of the fluorescent lamp 103 inside the fixture body 102 to reduce glare of the fluorescent lamp 103 in front of the lighting fixture 100 (see, for example, Patent Document 1). .
JP-A-3-22304 (FIG. 1)

  However, in the conventional lighting fixture 100 as described above, the illuminance is high just below the lighting fixture 100, but the ceiling 101 is not irradiated with illumination light and is dark, so that there is an illumination space such as a room illuminated by the lighting fixture 100. There was a problem that it felt dark as a whole, that is, the “Feu value” was low. Here, the “Feu value” is a unit of a brightness sensation index that is a comprehensive evaluation of the brightness felt for the space when the illumination space is observed. It is calculated based on the color mode boundary luminance in the concept of the illumination recognition visual space, and the larger this value is, the higher the brightness of the illumination space is and the brighter it is.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a luminaire that can irradiate illumination light so that the illumination space illuminated by the luminaire has a bright feeling as a whole. To do.

Lighting device of the invention, the instrument body in which the light source is attached to a luminaire for attachment to the mounting base, the provided under side of the instrument body, transmits part of the light emitted from the light source downward And having a semi-reflective material for irradiating reflected light to the attached portion, a support member is attached to the instrument body, and a support post extending downward is attached to the support member, The semi-reflective member is attached to the lower end portion of the support post, and the semi-reflective member is positioned on the far end side lower than the end portion on the side close to the center of the instrument body. is inclined so that the semi-reflective material has fine irregularities on the reflective surface, the support posts, the part of light emitted diagonally downward from the front Symbol light source, said that the inclined Pass above the semi-reflective member and under the semi-reflective member Space to derive a direct beam has a structure having a length that is formed on the lower side of the instrument body.

With this configuration, the semi-reflective material provided in front of the fixture body transmits part of the light emitted from the light source and reflects part of the light to illuminate the mounted portion. A feeling of brightness becomes high and the Fue value can be improved. In addition to this, it is possible to save energy by preventing the light source from being brightened.
Further, with this configuration, a part of the irradiation light is irregularly reflected by the unevenness provided on the reflection surface of the semi-reflecting material, and illuminates the mounted portion.

  Moreover, the lighting fixture of this invention has the structure whose said semi-reflective material is a product made from a polycarbonate.

  With this configuration, a lightweight and durable semi-reflective material can be produced by using polycarbonate.

  Moreover, the lighting fixture of this invention has the structure which has the semi-transmissive material into which the transmitted light which permeate | transmitted the said semi-reflective material injects.

  With this configuration, a part of the irradiation light transmitted through the semi-reflective material is irradiated through the semi-transmissive material.

Furthermore, the lighting fixture of this invention has the structure which has the translucent part which the direct light from the said light source passes in the position right under the said light source .

  With this configuration, the front front of the luminaire is directly illuminated by the light source, so that it can be illuminated brightly.

  In the present invention, the semi-reflective member provided in front of the fixture body transmits part of the light emitted from the light source and reflects part of the light to illuminate the mounted portion. A feeling of brightness becomes high and the Fue value can be improved. Accordingly, it is possible to provide a lighting apparatus having an effect that energy saving can be achieved by preventing the light source from being brightened.

Hereinafter, the lighting fixture concerning 1st Embodiment of this invention is demonstrated using drawing.
1A is an overall perspective view of a lighting fixture according to a first embodiment of the present invention, FIG. 1B is an enlarged perspective view of an end portion, FIG. 2 is an end view and a sectional view of the lighting fixture, and FIG. And (B) are a perspective view and a plan view showing an example of a semi-transmissive material.

  As shown in FIG. 1 and FIG. 2, in the lighting fixture 10 of the present invention, the fixture main body 20 to which the straight tube type fluorescent lamp 12 as a light source is attached is provided on the ceiling 11 as a mounting surface. It is attached to the opening 11a for use. Then, a semi-reflecting material 30 is provided in front of the instrument body 20 (downward here) so that the irradiation light from the fluorescent lamp 12 is transmitted forward and the reflected light of the semi-reflecting material 30 is applied to the ceiling 11.

  The appliance main body 20 is a rectangular box-shaped member having an opening 20 a below, and a louver 26 that crosses the internal space in a direction perpendicular to the longitudinal direction of the fluorescent lamp 12 is provided inside the appliance main body 20. It is attached at predetermined intervals in the longitudinal direction. A rectangular frame 25 is attached to the lower end of the instrument body 20. Support members 22 are attached to portions of the frame body 25 corresponding to both longitudinal ends of the instrument body 20, and support posts 24 are suspended from the support members 22. A semi-reflective material 30 is attached to the lower end of the support post 24. In addition, an electrical component 23 such as a lighting circuit is mounted on the instrument body 20.

  The semi-reflective members 30 are suspended by the support posts 24 below the opening 20 b of the instrument main body 20, and a pair is provided along the longitudinal direction of the fluorescent lamp 21. Between the pair of semi-reflective members 30, a space 27, which is a translucent part through which direct light from the fluorescent lamp 21 passes, is provided immediately below the fluorescent lamp 21. Thereby, since the front front of the lighting fixture 10 is directly irradiated by the fluorescent lamp 21, it can illuminate brightly.

  The semi-reflecting material 30 reflects a part of the irradiation light from the fluorescent lamp 21 and transmits a part thereof. The semi-reflective member 30 forms a triangular cylinder shape together with the vertical plate 31 in the vertical direction and the semi-transmissive material 32 provided horizontally from the lower end of the vertical plate 31. The semi-reflective member 30 is provided by connecting the upper end portion of the vertical plate 31 and the outer end of the semi-transmissive member 32, and is inclined outward. Therefore, a part of the irradiation light of the fluorescent lamp 21 irradiated to the semi-reflecting plate 30 is transmitted downward and illuminates the lower part, and part is reflected outward and illuminates the ceiling 11.

  The lower end of the support post 24 passes through a notch 30a provided in the semi-reflective member 30, and is attached to a mounting bracket 33 attached to the vertical plate 31 by a nut 33a. Note that end plates 34 are attached to both end portions of the semi-reflective member 30 so as to cover the inside of the semi-reflective member 30 so as not to be seen.

The semi-reflective material 30 is preferably formed using polycarbonate. Thereby, the lightweight and durable semi-reflective material 30 can be produced.
Further, it is desirable to provide fine irregularities on the reflective surface 30b of the semi-reflective material 30. For example, the semi-reflective material 30 can be formed by sticking a polycarbonate semi-reflective sheet 30c having fine irregularities to the support member 30d. Thereby, a part of the irradiation light from the fluorescent lamp 21 is irregularly reflected by the unevenness provided on the reflection surface 30b of the semi-reflecting material 30 and can easily illuminate the ceiling 11 that is the attached portion.

The semi-transmissive material 32 is a member that allows the transmitted light that is part of the irradiation light of the fluorescent lamp 21 that has been transmitted through the semi-reflective material 30 to enter and transmits a part of the transmitted light.
For example, as shown in FIG. 3A, a semi-transparent material 32A can be formed by providing, on one surface, a mountain shape 32a having an apex angle θ (for example, θ = 90 °) parallel to the entire surface. Alternatively, as shown in FIG. 3B, a semi-transparent material such as punching metal is provided by providing a circular or regular polygonal opening 32b on the front surface of a member that reflects light, such as a white paint plate or a specular plate. 32B can be formed.

  As described above, according to the lighting fixture 10 according to the present invention described above, the semi-reflecting material 30 provided in front of the fixture body 20 transmits a part of the light emitted from the fluorescent lamp 21 downward to illuminate the lower portion, Since the ceiling 11 is illuminated by reflecting a part, the brightness feeling of the illumination space illuminated by the luminaire 10 is increased, and the Fue value can be improved. Accordingly, it is possible to save energy by preventing the fluorescent lamp 21 from being brightened.

Next, 2nd Embodiment of this invention is described based on drawing.
FIG. 4 is an end view and a cross-sectional view of a lighting fixture according to the second embodiment. In addition, the same code | symbol is attached | subjected to the site | part which is common in the lighting fixture 10 concerning 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 4, in the lighting fixture 10 </ b> B according to the second embodiment of the present invention, the semi-transparent material 32 </ b> B made of a semi-transparent resin having a triangular prism section convex upward is provided directly below the fixture body 20 by the support post 24. A semi-reflective material 30B is formed by attaching a semi-reflective sheet 30c to a pair of inclined surfaces.

  Therefore, a part of the irradiation light emitted from the fluorescent lamp 21 is reflected upward and outward by the semi-reflective sheet 30 c to illuminate the ceiling 11. Further, a part of the light passes through the semi-reflective sheet 30c and passes through the semi-transmissive material 32B to illuminate the lower part.

  As described above, according to the lighting fixture 10B according to the second embodiment described above, the ceiling 11 is illuminated by reflecting a part of the irradiation light of the fluorescent lamp 21 as in the lighting fixture 10 according to the first embodiment described above. The brightness feeling of the illumination space illuminated by the lighting fixture 10B is increased, and the Fue value can be improved.

Next, 3rd Embodiment of this invention is described based on drawing.
FIG. 5 is an end view and a cross-sectional view of a lighting fixture according to the third embodiment. In addition, suppose that the same code | symbol is attached | subjected to the site | part which is common in the lighting fixtures 10 and 10B concerning 1st and 2nd embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 5, in the lighting fixture 10 </ b> C according to the third embodiment of the present invention, the semi-transparent material 32 </ b> C made of a semitransparent resin having a downwardly protruding triangular prism section is provided directly below the fixture body 20 by the support post 24. A semi-reflective material 30C is formed by attaching a semi-reflective sheet 30c to a flat upper surface.

  Therefore, a part of the irradiation light emitted from the fluorescent lamp 21 is reflected upward by the semi-reflective sheet 30 c to illuminate the ceiling 11. Further, a part of the irradiation light passes through the semi-reflective sheet 30c, passes through the semi-transmissive member 32B, passes through the pair of inclined surfaces 32c and 32c outwardly downward, and illuminates the lower part.

  As described above, according to the lighting fixture 10 </ b> C according to the third embodiment described above, similar to the lighting fixture 10 according to the first embodiment described above, a part of the irradiation light of the fluorescent lamp 21 is reflected to illuminate the ceiling 11. The brightness feeling of the illumination space illuminated by the lighting fixture 10C is increased, and the Fue value can be improved.

  In addition, the lighting fixture of this invention is not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

(A) is the whole perspective view of the lighting fixture concerning 1st Embodiment of this invention, (B) is an expanded perspective view of an edge part. End view and sectional view of lighting fixture (A) And (B) is the perspective view and top view which show the example of a semi-permeable material End view and sectional view of a lighting apparatus according to the second embodiment End view and sectional view of lighting apparatus according to the third embodiment Cross-sectional view of a conventional lighting fixture

Explanation of symbols

10 Lighting equipment 11 Ceiling (Mounted surface)
20 Instrument body 21 Fluorescent lamp (light source)
27 Space (Translucent part)
30 Semi-reflective material 32 Semi-transmissive material

Claims (4)

A lighting fixture for attaching a fixture body to which a light source is attached to an attached portion,
The provided under side of the instrument body, and to reflect a part of light emitted from the light source downward, has a semi-reflective material that irradiates the reflected light to the attached part,
A support member is attached to the instrument body,
A support post extending downward is attached to the support member,
The semi-reflective material is attached to the lower end of the support post,
The semi-reflective member is inclined so that the end on the far side is located below the end on the side close to the center of the instrument body,
The semi-reflective material has fine irregularities on the reflection surface,
Said support posts, the space to derive a part of the previous SL light emitted diagonally downward from the light source, a direct beam to the lower side of the inclined to have the passed over the semi-reflecting member said semi-reflective member Has a length formed below the fixture body .   The lighting apparatus according to claim 1, wherein the semi-reflective material is made of polycarbonate.   The lighting apparatus according to claim 1, further comprising a semi-transmissive material on which transmitted light transmitted through the semi-reflective material is incident.   The lighting apparatus according to any one of claims 1 to 3, further comprising: a translucent portion through which direct light from the light source passes, at a position directly below the light source.

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